경영과정보연구 (Management & Information Systems Review)

  • 제35권3호
  • /
  • Pages.173-193
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  • 2016
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  • 1598-2459(pISSN)
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  • 2733-4767(eISSN)
대한경영정보학회 (Daehan Academy of Management Information Systems)
권호 표지

신용조회업무 정보시스템의 재난복구 우선순위결정: 퍼지 TOPSIS 접근방법

Disaster Recovery Priority Decision for Credit Bureau Business Information System: Fuzzy-TOPSIS Approach

  • Yang, Dong-Gu (Dept. of Business Administration, Kwangwoon University) ;
  • Kim, Ki-Yoon (Dept. of Business Administration, Kwangwoon University)
  • 투고 : 2016.07.25
  • 심사 : 2016.09.08
  • 발행 : 2016.09.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문의 목적은 신용조회업무 정보시스템에 대한 재난복구 우선순위결정문제를 해결하기 위해서, TOPSIS 방법을 퍼지 환경에 적용시키는 것이다. 본 논문에서 각 정보시스템에 대한 평가와 평가기준에 대한 가중치는 사다리꼴 퍼지 수로 표현되는 언어적 용어로 기술된다. 여기서 두 사다리꼴 퍼지 수들 간의 거리는 vertex 방법으로 측정한다. 그리고 TOPSIS 개념에 따라서, 근접계수를 구해서 모든 정보시스템들의 우선순위를 결정한다. 이와 같은 퍼지집합과 TOPSIS의 통합방법은 다른 다기준 의사결정방법들과 비교해서 여러 장점들이 있는데, 예로써, 의사결정을 민첩하게 할 수 있도록 적은 퍼지 자료로도 파라메타 계산이 가능하고, 또한 동시에 평가 할 수 있는 대안의 수에 제약을 받지 않고, 그리고 새로운 대안이 평가과정에서 추가되어도 순위변경문제가 발생되지 않는다는 점이다. 본 논문은 9개의 평가기준과 6명의 평가자들이 평가하는 9개의 신용조회업무 정보시스템들이 포함된 실제사례에 적용했고, 그리고 업무연속성계획(BCP) 수립위한 체계적인 재난복구체계를 실무자들에게 제공하고 있다. 결론적으로 본 논문에서 제시한 퍼지 TOPSIS 방법의 적용절차는 신용조회업무 정보시스템에 대한 재난복구 우선순위결정문제를 해결하는 의사결정도구로 매우 적절한 것이다.

The aim of this paper is to extend the TOPSIS(Technique for Order Preference by Similarity to Ideal Solution) to the fuzzy environment for solving the disaster recovery priority decision problem in credit bureau business information system. In this paper, the rating of each information systems and the weight of each criterion are described by linguistic terms which can be expressed in trapezoidal fuzzy numbers. Then, a vertex method is proposed to calculate the distance between two trapezoidal fuzzy numbers. According to the concept of the TOPSIS, a closeness coefficient is defined to determine the ranking order of all information systems. The combination between the fuzzy set and TOPSIS brings several benefits when compared with other approaches, such that the fuzzy TOPSIS require few fuzzy judgements to parameterization, which contributes to the agility of the decision process, it does not limit the number of alternatives simultaneously evaluated, and it does not cause the ranking reversal problem when a new alternative is included in the evaluation process. This paper is demonstrated with a real case study of a credit rating agency involving 9 evaluation criteria and 9 credit bureau business information systems assessed by 6 evaluators, and provide the systematic disaster recovery framework for BCP(Business Continuity Planning) to practitioner. Finally, this paper show that the procedure of the proposed fuzzy TOPSIS method is well suited as a decision-making tool for the disaster recovery priority decision problem in credit bureau business information system.

키워드

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